Apparatus for forming penetrating cracks in rock sample and operation method thereof

Abstract

The invention discloses an apparatus for forming penetrating cracks in a rock sample and an operation method thereof. The apparatus includes a pedestal, a support structure, a workbench, a drilling device, a cutting device, a sample fixing device, a dust removal device, and a power source. The support structure is fixed on the pedestal and includes four vertical columns, two crossbeams, two linking beams, two support rods, two slide rails, a front glass board, side glass boards, a rear glass board and a glass cover board. The four vertical columns are vertically fixed on the pedestal. The two crossbeams and two linking beams are fixedly connected to form a rectangular frame which is fixed on the upper ends of the vertical columns. Each support rod is fixed on the middle parts of two vertical columns. The two support rods are symmetrically disposed and are located on the same horizontal plane. The apparatus can effectively increase the precision and efficiency of forming the penetrating cracks in the rock sample, so that subsequent test on the rock sample is convenient to carry out. In addition, the production process also includes dry-type dust removal, so that the apparatus does not change the original mechanical properties of rock and is free of influence on surrounding environment and body health.

Description

technical field [0001] The invention relates to a device and a working method for preparing a rock sample, in particular to a device and a working method for preparing a rock sample through a crack. Background technique [0002] When studying the mechanical properties of rock, it is often necessary to make various rock specimens, and the surrounding rock mass of underground engineering mostly contains weak surfaces such as cracks, joints, faults, and weak interlayers, which have a negative impact on the stability of underground engineering surrounding rock, so , the study of the mechanical properties of fractured rock specimens is of great significance to the mechanical properties of fractured rock mass and the stability of underground engineering. At present, there are mainly defects in the following aspects in the preparation method of the fractured rock test piece: the one is that a large amount of dust is produced in the drilling and cutting process of the rock fracture,...

AI Technical Summary

Problems solved by technology

Contain the defective of following several aspects mainly in the manufacture method of fractured rock test piece at present: the one, produce a large amount of dusts in the rock fissure drilling and cutting process, not only harmful to the health of operating personnel, and pollute indoor environment, if adopt water spray to reduce dust, It will change the original mechanical properties of the rock; second, it is difficult to accurately control the spatial position, size, and concentricity of the two ends of the crack, which cannot meet the pre-designed crack requirements; third, there are many ways to make rock cracks. It is a manual or semi-automatic operation (such as a mold combined with a diamond wire manual saw), therefore, the production efficiency of the crack is low

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